<?php
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP
 *
 * This content is released under the MIT License (MIT)
 *
 * Copyright (c) 2014 - 2018, British Columbia Institute of Technology
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * @package	CodeIgniter
 * @author	EllisLab Dev Team
 * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
 * @copyright	Copyright (c) 2014 - 2018, British Columbia Institute of Technology (http://bcit.ca/)
 * @license	http://opensource.org/licenses/MIT	MIT License
 * @link	https://codeigniter.com
 * @since	Version 1.0.0
 * @filesource
 */
defined('BASEPATH') OR exit('No direct script access allowed');

/**
 * Form Validation Class
 *
 * @package		CodeIgniter
 * @subpackage	Libraries
 * @category	Validation
 * @author		EllisLab Dev Team
 * @link		https://codeigniter.com/user_guide/libraries/form_validation.html
 */
class MY_Form_validation extends CI_Form_validation{

    public function __construct($rules = array())
    {
        parent::__construct($rules);
    }

    public function is_unique($str, $field)
    {

        sscanf($field, '%[^.].%[^.]', $table, $field);
//        return isset($this->CI->db)
//            ? ($this->CI->db->limit(1)->get_where($table, array($field => $str))->num_rows() === 0)
//            : FALSE;
        //print_r($this->_field_data);
        if(isset($this->CI->db)){
            $query = $this->CI->db->select($field)->from($table)
                ->where(array($field => $str))->limit(1)->get();
            if ($query->row()) {
                return FALSE;
            } else {
                return TRUE;
            }
        }else{
            return FALSE;
        }

    }


}
